WO2018154239A1

WO2018154239A1 - Device for climbing and holding along a vertical cable

Info

Publication number: WO2018154239A1
Application number: PCT/FR2018/050413
Authority: WO
Inventors: Quentin BOEKING DIT SYDENHAM
Original assignee: Boeking dit Sydenham, Frédérique; Boeking dit Sydenham, Kevin; Kitson, Nicholas; Boeking dit Sydenham, Robin; Kitson, Luc; Boeking dit Sydenham, Benjamin; Boeking dit Sydenham, Maëlie; Dailledouze, Mathias
Priority date: 2017-02-21
Filing date: 2018-02-21
Publication date: 2018-08-30
Also published as: FR3063016A1; EP3363504A1; DK3363504T3; FR3063016B1; EP3363504B1

Abstract

The invention relates to a system (1) for climbing along a main cable (2), the climbing system comprising a dorsal holding means intended to be secured to the back of a user (3), the climbing system being designed such that it also comprises a retaining means (8) comprising a first end part (9) and a second end part (10), the first end part being intended to be secured to the dorsal holding means, the second end part comprising a slot (22) intended to receive the main cable such that the second end part can slide along the main cable.

Description

DEVICE FOR ASCENSION AND HOLDING ALONG A CABLE

VERTICAL

The invention relates to the field of belaying and climbing, including along a vertical cable. The invention relates more specifically to devices allowing a user to be held in a vertical position during the ascent of a vertical cable.

[0002] Professionals working at heights as well as high-altitude sports practitioners generally protect against falls by means of a harness connected to at least one cable. Many types of harnesses exist, depending on the type of use that is made of them. In general, a harness consists of a lap belt, thighs joined on a ventral part and on a dorsal part by means of straps provided for this purpose. In such a configuration, this type of harness, called harness, mainly closes an area located in the vicinity of the user's pelvis, and is ideal for the use of sports such as climbing. For some other applications requiring for example a tightening of the torso, additional straps are provided, for example at the shoulders or sternum of the user.

[0003] By making sure that it is securely attached to a cable, the harness provides an essential security for users operating at great height, but its use is not without drawbacks.

Indeed, it has been found that in case of prolonged suspension and passive, ie in the absence of movement of the limbs, the user can within minutes lose consciousness. In the absence of rescue intervention, the user may be subject to a tachycardia attack which, in extreme cases, may be fatal. This type of physiological stress is known as "harness syndrome", or "shoulder syndrome" or "suspension trauma". The intra-thoracic vascular volume of a user with its suspended limbs is transferred to the extremities of the body, with no possibility of return, which can lead to a lack of oxygenation of the vital organs (see for example Dr.Boyet et al. "The syndrome of the harness", publication Urgence pratique n ° 85, P.49- [0005] Prevention means exist to limit the risk of occurrence of such a syndrome. Thus, the French patent application FR 2 932 689 (HEDE ET AL, Zedel) discloses a lashing harness composed of a belt and a fifth seat, interconnected by connecting straps.

In addition to the comfort of use it provides, such a harness allows a better distribution of gravity efforts exerted by the user on the harness. In this way, the number of compression points, a factor in the occurrence of a harness syndrome, is limited for the members of the individual in suspension with the use of such a harness, compared to a harness or harness. conventional without saddles. The duration of suspension without risk of occurrence of a syndrome of the harness is thus increased. Nevertheless, the risk of developing discomfort is not completely eliminated. In addition, nothing prevents a backward tilting of the user if such a situation occurs.

[0007] It is also known to use a blocker such as that described in document FR 2900 579 A1 (PETZL) or in FR 2 568 132 (PETZL). While climbing the blocker towards the chin, a person in ascension can avoid the occurrence of a discomfort. Nevertheless, this manipulation is not easy to realize for the user, and is time-consuming.

The solutions presented above are hardly compatible for users wishing to climb using self-locking, along a vertically positioned cable. Self-locking devices are devices able to slide along one or more cables, surrounded by the self-locking, in one direction, and able to lock on the cable or cables in a second direction.

The cables are generally made of plant fibers, synthetic or metal son. Conventionally, the self-locking is achieved by a simple cord surrounding the cable, a part comprising teeth adapted to anchor in the cable, or a device comprising a set of rollers and springs.

Thus, to climb along a cable, the individual slides, along the cable, upwards, a first self-locking connected to a first part of his body, for example the torso, while s' pressing a second interlocking connected to a second part of his body, for example the feet. The individual then rest his weight on the first self-locking, and slide along the cable, upwards, the second self-locking.

It is known in order to adopt a more natural and less tiring climbing position for the individual (that is to say a vertical position, the feet directed downwards and the force of the legs pushing the mass of the individual upwards to go up the first then the second self-blocking), to secure the first self-blocking to a first foot of the individual, by means of a rope, and the second self-blocking to a second foot of the individual.

Document US 2015/0251057 (FRANKENHAUSER ET AL.) Describes a climbing system along a vertical cable, comprising a first self-locking secured to a first foot of a first leg of an individual by the through a climbing device, and a second self-blocking directly attached to a second foot of the individual. The ascension device comprises a sheath, able to work in tension, defining at a first end a stirrup, in which the individual inserts his first foot. The sheath is provided, at a second end, opposite the first end, of a fastening system to the first self-locking. The ascension device also comprises an elastic cord, present inside the sheath, and secured to the first end of the sheath and a pulley sliding on the cable, connected to the torso of the individual.

In this device of the state of the art, when the first leg of the individual is stretched, its weight rests on its first foot. The weight of the individual is supported by the first self-locking through the sheath, the first self-blocking preventing slippage of the first foot along the cable. The first self-locking and the pulley are then in a position remote from each other, which tends the elastic cord. When the individual wants to slide the first self-locking on the cable, upwards, he transfers his mass on his second foot, the second self-blocking preventing a sliding of the second foot along the cable, the individual then raises his first foot in bending the knee. The elastic cord relaxes, bringing the first self-locking to the pulley. The pulley, attached to the torso of the individual, remains substantially fixed with respect to the cable, and the first self-locking slips up the cable. Such an ascension device actually allows to climb along a vertical cable by the sole force of the legs of the individual, the latter remaining in a vertical position, the feet directed downwards while releasing the hands of the individual.

In addition, when the individual stretches his first leg, the first self-locking remaining substantially fixed with respect to the cable and the pulley sliding upwardly along the cable, the elastic cord tending, the force generated by the individual must allow, in addition to lifting its own weight, to stretch the elastic cord. The elastic cord is constantly subjected to variable stresses, risking to modify its mechanical properties, by fatigue. In addition, the stability of the user is ensured only by the harness. However, in the case of the use of a harness, neither the torso nor the back are maintained, which makes it less easy to support the user in a vertical position.

A first objective is to propose a climbing system along a vertical cable, to maintain the individual in a vertical position without the help of hands, feet directed downwards.

A second objective is to provide a climbing system along a vertical cable, easy to use.

A third objective is to provide such a climbing system, equipped with a climbing system requiring only the strength of the legs of the individual to climb.

For this purpose, it is proposed, in the first place, a climbing system along a main cable, the climbing system comprising a back support means intended to be secured to the back of a user the ascension system further comprising a retaining means comprising a first end portion and a second end portion, the first end portion being adapted to be integral with the back holding means, the second end portion comprising a light for receiving the main cable, so that the second end portion can slide along the main cable, the retaining means comprising a bar, the first end portion being a portion of the bar intended to be secured to the backing means, the second extreme part comprising a sliding device. The ascension system keeps in position an individual along the main cable, which allows him to release the use of his hands, but also to avoid being in a position likely to cause a harness syndrome.

Various additional features may be provided, alone or in combination: the back support means is a plate, having a shape adapted to fit the back of the user;

- The backing means further comprises a holding means of the user's head;

the bar extends from the first end portion, in a substantially rectilinear direction, then has a curvature, the bar extending above the head of the user when the first end portion is secured to the backing means, this back support means being integral with the back of the user;

the backing means comprises a hollow rod, the bar being fitted within the hollow rod, the hollow rod comprising at least one hole cooperating with at least one ball disposed on the bar;

the light comprises a contour forming a closed loop that can be opened;

the back support means is secured to the back of the user, by means of straps and / or by a fastening belt;

the backing means comprises a connecting device for connecting the backing means to a harness;

the backing means comprises an ascending device along a main cable, this device further comprising a stirrup, a holding element configured to be integral, at a first end, of the stirrup and intended for to be secured, at a second end, with a first self-locking device capable of being arranged on the main cable, the holding element comprising a rod, able to withstand a compressive force exerted between the first end and the second end, of so to slide the first self-locking along the cable main, the rod of the holding member comprises a plurality of independent segments.

It is proposed, secondly, a climbing device along a main cable, comprising a stirrup, the ascension device further comprising a holding member configured to be secured, in a first end, of the stirrup and intended to be secured at a second end, a first self-locking able to be arranged on the main cable, the holding member comprising a rod adapted to withstand a compressive force exerted between the first end and the second end, so as to slide the first self-locking along the main cable.

The holding member thus allows an individual to mount the first self-locking along the main cable using only a first foot inserted into the caliper.

The holding member also allows an individual to ride along the main cable without using its upper limbs.

[0025] Various additional features may be provided, alone or in combination:

- The device comprises a traction cable configured to be secured, in a first end, of the yoke and intended to be secured in a second end, the first self-locking, the traction cable being able to withstand a tensile force exerted between the first end and the second end, so as to prevent slippage of the ascending device along the main cable; the rod of the holding member extends from the first end to the second end of the holding member;

the rod of the holding member comprises a plurality of independent segments;

- The rod of the holding member comprises sleeves, configured to assemble the segments to each other;

the stem has a general shape of circular section tube;

the holding member comprises an elastic cable, configured to be integral with the first end and the second end of the holding member, the elastic cable being disposed within the rod; the rod of the holding element extends from the first end to the second end of the holding element, the rod being able to withstand a traction force exerted between the first end and the second end, so as to prevent slippage of the climbing device along the main cable.

It is proposed, third, a climbing system along a main cable comprising a climbing device as presented above, the climbing system comprising a first self-locking configured to be secured to the second end of the holding member.

The system comprises a footrest, configured to be secured to a second self-locking able to be arranged on the main cable.

Other characteristics and advantages of the invention will appear more clearly and concretely on reading the following description of embodiments, which is made with reference to the accompanying drawings in which:

Figure 1 is a schematic perspective view of the climbing system along a vertical cable, according to a first embodiment;

Figure 2 is a schematic perspective view of the climbing system along a vertical cable, according to the first embodiment, shown with the main cable;

Figure 3 is a schematic sectional view along the plane III-III of the climbing system along a vertical cable;

Figure 4 is a schematic perspective view of the climbing system along a vertical cable, according to a variant of the first embodiment;

Figure 5 is a schematic perspective view of the climbing system along a vertical cable, according to a variant of the first embodiment, the ascension system being shown carried by a user in a conscious state;

Figure 6 is a schematic perspective view of a variant of the first embodiment, the ascension system being shown worn by a user victim of a loss of consciousness;

FIG. 7 is a schematic perspective view of a climbing device of a climbing system along a main cable, corresponding to a second embodiment of the climbing system;

FIG. 8 is a schematic perspective view of an ascent device of a climbing system along a main cable, corresponding to the second embodiment of the ascent system, the ascension device being represented disassembled;

Figure 9 is a schematic perspective view of a climbing device of an ascent system along a main cable, corresponding to a variant of the second embodiment of the ascent system;

Figure 10 is a schematic view of a first climbing phase of a user climbing along the main cable, using the variant of the second embodiment of the ascent system;

Figure 11 is a schematic view of a second climbing phase of a user climbing along the main cable, using the variant of the second embodiment of the ascent system.

In Figures 1 to 5 is shown a system 1 of ascension along a main cable 2, according to a first embodiment. The climbing system 1 is intended to be worn by a user 3, as illustrated in FIGS. 5 and 6.

In common with the embodiments shown, the main cable 2, and the other cables are made of plant fibers, synthetic or metal son.

According to the embodiments shown in the figures, the main cable 2 is positioned substantially vertically, and fixed at its upper end.

Without this being limiting, the user 3 is shown in the figures provided with a harness 4 of the shoulder belt type, comprising a ventral band 5 connected to two turns 6 of thigh.

According to embodiments not shown, the harness 4 comprises a saddle, disposed at the buttock of the user 3, so as to limit the appearance of pressure points, a factor promoting occurrence of a syndrome of harness. One defines with respect to the system 1 of ascension an orthogonal reference XYZ constituting a trihedron, comprising three axes perpendicular two by two, namely:

an axis X, defining a longitudinal direction, horizontal, a Y axis, defining a transverse, horizontal direction, which with the X axis defines a horizontal XY plane,

a Z axis, defining a vertical direction, perpendicular to the horizontal XY plane, and defining the general direction of extension of the main cable 2.

In the following description, and in relation to the reference defined above, the terms "longitudinal" or "longitudinally" refer to a direction coincident with the X axis, the terms "transverse" or "transversely" refer to a direction coincident with the Y axis, and the terms "vertical" or "vertically" refer to a direction coincident with the Z axis. The absolute position terms, such as "forward", "backward", "up", "down", "left", "right", or relative like "above", "upper", "below", "below" are defined with respect to the position of a user 3 on the cable 2 main, the positive direction of the Z axis is in going in the direction of the ascent of the user 3 along the main cable 2.

According to the first embodiment illustrated in Figures 1 to 6, the system 1 of ascension comprises a back support means 7 and a means 8 for retaining. The retaining means 8 has a first portion 9 end, intended to be secured to the means 7 of back support. The retaining means 8 also comprises a second end portion 10 intended to receive the main cable 2 sliding.

The means 7 of the back support is secured to the back of the user 3, that is to say, able to accompany the movement of the back of the user 3. In this way, the means of back support 7 remains constantly in contact with the back of the user 3, which guides it in all circumstances, including in the case where the user 3 is a victim of a failure resulting in loss of consciousness, as shown in Figure 6 .

According to the embodiments described, the back support means 7 comprises a plate 11 provided with a front face 12, intended to come into contact with the back of the user, and a rear face 13, opposite the front face 12. The plate 11 also has a sufficient rigidity not to deform in torsion along the Z axis, under the action of the bearing force exerted by the back of an adult user 3.

As shown in Figure 2, the means 7 of the back support comprises a reinforcement 14, intended to be positioned on the side opposite to that in contact with the back of the user 3. Such a reinforcement 14 avoids the torsion of the plate 11 along a vertical axis, to increase the rigidity of the means 7 of back support.

The plate 11 and the reinforcement 14 are for example made of aluminum alloy. Advantageously, materials such as carbon fiber or fiberglass are used. Such composite materials allow the plate 11 a warp of limited amplitude, giving a flexion movement to the plate along the Y axis at the level of the kidneys of the user, which improves its comfort when wearing the means 7 back support.

As shown in all the figures, the plate has a geometry matching the back, for example having a periphery 15 narrowed in the vicinity of the size of the user 3. The plate 11 then has the vicinity of the shoulders and lumbar user 3 a width greater than the portion of the plate 11 intended to come into contact with the dorsal. In this way, the comfort of the user 3 is reinforced.

According to advantageous implementations not shown, the plate 11 is provided with a damping element, for example a padding in the form of a damping polymer foam, disposed between the means 7 of back support and the back of the 3. The approval of contact between the front face 12 of the plate 11 and the back of the user 3 is improved. In addition, such an arrangement provides the possibility of limiting the sliding between the front face 12 and the back of the user, which allows to maintain a good bonding of the back and the means 7 of back support.

According to the embodiment shown, the back support means 7 is made integral with the back, by means of straps 16, fixed for example on the plate 11. In this way, the establishment and the Using the Ascension System 1 is simplified. In order to allow a good holding, and prevent play between the back of the user 3 and the means 7 of back support, the straps 16 are adjustable by the user 3. The means 7 of back support is then adaptable to the morphology of the user.

According to an alternative embodiment shown in Figures 4 to 6, the straps 16 are connected between using at least one adjustable sternal strap 17. In this way, an additional fixation is obtained at the level of the user's chest 3. The adjustment makes it possible to adapt the means 7 of back support to the morphology of the user 3, while at the same time making it possible to increase the maintenance of the back of the user 3 against the means 8 of restraint.

According to an alternative embodiment, shown in Figures 4 to 6, the means 7 of the back support has a fastening belt 18, able to surround the size of the user 3, offering the user 3 the possibility of This is because such a fastening belt 18 makes it possible to oppose the force exerted by the main cable 2 on the second extreme portion, and thus to avoid any risk of tilting of the back support means 7 over the user 3. In the case of the use of a harness 4, as illustrated in the figures, the fastening belt 18 is positioned above the ventral band 5, and does not interfere with the harness 4, nor with any raising or lowering device. The establishment of the means 7 of back support by the user 3 is also not hampered by the use of the harness 4. These advantages offer flexibility of use of the system 1 of ascension, limiting the time of setting in place of the means 7 of back support.

According to an alternative embodiment, shown in Figures 4 and 5, the system 1 of ascension comprises a means 19 for holding the head. In this way, in case of tilting back, the head and the neck of the user 3 are maintained, avoiding the extension of the head of the user 3, which can cause compression on the carotid sinus , and thus promote the occurrence of the harness syndrome 4.

Advantageously, the means 7 of the back support the shape of the head, having dimensions similar to those of the head. As shown, the means 19 for holding the head is integral with the means 7 of back support, but according to other variants not shown, the means 19 for holding the head is assembled on the means 7 of back support.

According to embodiments, not shown, the means 19 for holding the head is provided with a damping element promoting comfort of use, and damping possible shocks on the cervical area, fragile, the user 3.

As can be seen in the figures, the system 1 of ascension has a connecting device 20, such as a spring ring, adapted to connect the harness 4 with the means 7 of dorsal support. As shown in Figure 2, the connecting device 20 is disposed on the rear face 13, preferably in a localized area at the lumbar level, so as not to hinder the movements of the user 3. The means 7 of back support is thus able to be easily connected to the harness 4, which facilitates its implementation. In addition, such a connection between the backing means 7 and the harness 4, promotes the attachment of the back support means 7 on the back of the user 3, in particular in the vertical and horizontal direction.

According to other embodiments, not shown, the backing means 7 comprises additional connecting devices 20, able to allow the attachment of tools, accessories, bags, or bags of water.

As shown in Figures 2 and 3, the retaining means 8 is intended to be secured to the backing means 7, through the first part 9 extreme. The retaining means 8 is thus fixed to the rear support means 7 on the rear face 13 and is able to extend outside the back support means 7, advantageously upwards. The second end portion 22 includes a slot 22 for receiving the main cable 2. The lumen 22 is open, and comprises a closed contour capable of forming a closed loop 21, shown in bold lines in FIG. 3. The closed loop 21 is able to be opened, in order to make the main cable 2 easily insertable or removable from this closed loop 21, which facilitates the mounting of the system 1 ascent. The main cable 2 is slidable along this lumen 22, leaving a functional clearance between the main cable 2 and the loop 21. In this way, a sliding pivot connection is formed between the main cable 2 and the cable 2. second part 10 extreme, which allows the displacement of the user 3 along the main cable 2.

Due to the encirclement of the cable within the loop 21, the main cable 2 is trapped and therefore can not go out. A user 3 using the climbing system 1 with the main cable 2 is then able to be held in the position of use, in the vicinity of the main cable 2. A tilting towards the rear of the user 3 is thus avoided, because due to the imprisonment of the main cable 2 within the lumen 22, a restraint is effected by contact of the main cable 2 and the loop 21. The restraint is therefore performed passively, ie independently of any action of the user 3. The ascension system 1 is able to protect the user 3 against the risk of a syndrome of the harness 4 consecutive, in case of loss of consciousness.

According to the embodiment described, the retaining means 8 comprises a bar 23 and a sliding device 24, both linked by a quick coupling means, for example a carabiner 25. A portion of the bar, corresponding the first part 9 end integral with the means 7 of back support. The sliding device 24 corresponds to the second end portion of the retaining means 8. In this way, the retaining means 8 and the backing means 7 are slidably connected with the main cable 2.

The bar 23 advantageously has a tubular or polygonal section, for example rectangular, advantageously profiled to facilitate its obtaining. The bar 23 extends above the user's head 3, and defines a curvature configured so that the second end portion can reach the main cable 2. Sufficient clearance is left between the head of the user 3 and the bar 23, so as to avoid any collision between the user 3 and the bar 23.

As shown in FIG. 2, the back support means 7 is, for example, provided with a hollow rod 26, fixed on the back support means 7, for example by welding, or by means of the reinforcement 14. Advantageously, the hollow rod 26 has a circular cross section, or polygonal, slightly greater than the cross section of the bar 23, making it able to slip into the hollow rod 26.

To allow a configuration adapted to the template of the user 3, the bar 23 is preferably adjustable relative to the hollow rod 26. The bar 23 thus comprises first latching means, for example spring-loaded balls 27, adapted to snap into second latching means, such as holes 28, arranged on the hollow rod 26. The implementation of the bar 23 fast, and achievable without tools. The holding system 1 is then removable and reassemblable by a single person.

According to the embodiments shown, the sliding device 24 comprises a pulley 29 and a flange 30, both connected by the carabiner 25. In this way, the light 22 is formed by the rim of the pulley 29, the flange 30, and the carabiner 25. Such an arrangement facilitates the sliding of the main cable 2 relative to the bar 23, but also allows insertion or release of the main cable 2 within the light 22. The user 3 can thus unhooking the means 7 of back support, relative to the main cable 2, without scrolling the entire main cable 2 within the light 22. A single intervention on the carabiner 25, so as to achieve its opening, allows the l hooking or unhooking of the retaining means 8 relative to the pulley 29 and the flange 30. The establishment of the means 8 of retaining relative to the main cable 2 requires only a reduced number of movements.

The establishment by the user of the ascension system comprises the following steps.

The user puts on his back the backing means 7, in this case the plate 11. The user passes the main cable 2 within the light 22 provided for this purpose, that is to say in the sliding device 24, which connects to the means 8 of retained with the carabiner 25. In the case of a plate connected to a hollow rod 26, the user puts the bar 23 on it. connecting device 20, the harness 4 is connected to the plate 11.

In the following description, the system is described according to a second embodiment, shown in Figures 7 to 11. In this second embodiment the system 1 ascent, as described above, is provided with a device 31 of ascension along a main cable 2.

As illustrated in FIGS. 7, 8 and 9, the ascending device 31 comprises a stirrup 32 having a section with closed contours defining an opening 33 delimited by a lower side 34 and an upper side 35 facing each other, and lateral sides 36 which connect the lower side 34 to the upper side.

The stirrup 32 preferably comprises a clamping means 37. The clamping means 37 comprises, according to the embodiments described, a female fastener 38 and a male fastener 39, each connected to one of the lateral sides 36.

The female fastener 38 comprises a closure 40 ratchets, and the male fastener 39 comprises a notched strap 41, adapted to coincide with the closure 40 ratchets.

The upper side of the stirrup 32 comprises a support 42 defining defining, according to the variants of the second embodiment shown, a first attachment point 43 and a second attachment point 44.

The ascension device 31 also comprises a holding element 45 configured to be integral, at a first end 46, with the first attachment point 43 of the stirrup 32.

The holding member 45 comprises a rod 47. According to the embodiments shown, the rod 47 extends from the first end 46 to a second end 48 of the holding member 45. The rod 47 has, for example, a general shape of circular section tube, or polygonal.

The rod 47 comprises several segments 49 which, assembled end to end, define the general shape of the rod 47. The rod 47 is, according to the embodiment shown, divided into five segments.

The rod 47 also includes sleeves 50 adapted to be arranged between each segment 49 and configured to assemble the segments 49 to each other. The sleeves 50 are capable, according to one embodiment, of centering the segments 49 with respect to one another. According to a different embodiment, the sleeves 50 are able to fix the segments 49 between them. Alternatively, the sleeves 50 and the segments 49 of the rod 47 form a monobloc element. The holding member 45 comprises an elastic cable 51, configured to be secured to the first end 46 and the second end 48 of the holding member 45. The elastic cable 51 is disposed inside the segments 49 of the rod 47.

The elastic cable 51 thus allows disassembly of the segments 49, as shown in Figure 9 for a variant of the second embodiment of the system 1 of ascension, without mislaying a segment 49 and a quick assembly of 49 segments.

According to the variant of the second embodiment, shown in FIGS. 9 to 11, the ascending device 31 comprises a towing cable 52 configured to be integral, in a first end 53, with the second attachment point 44. of the stirrup 32.

A user 3 desiring to climb upwards along the main cable 2, using a climbing device 31 as described above, secures the second end 48 of the holding element 45 and a second end 54 of the traction cable 52 to a first self-locking 55. The first self-locking 55 is disposed on the main cable 2.

The segments 49 of the ascension device 31 are previously assembled. Such a configuration is shown, for the variant of the second embodiment of the system 1 ascent, in Figures 10 and 11.

The first self-locking 55 is a device adapted to slide along the main cable 2, surrounded by the first self-locking 55, in one direction and able to lock on the main cable 2 in a second direction. Conventionally, the first self-locking 55 is achieved by a simple cord surrounding the cable, a part comprising teeth adapted to be anchored in the main cable 2, or a device comprising a set of rollers and springs.

The user 3 inserts a first foot 56 of a first leg 57 into the opening 33 of the stirrup 32. The first foot 56 rests on the lower side 34 of the stirrup 32 which, according to the modes of illustrated embodiments, has a flat surface larger than the size of a surface of the upper side and side 36. The user 3 thus has a large and stable support.

The stirrup 32 is preferably made of a sufficiently rigid material, not to deform under the weight of the user 3 and its equipment. The first foot 56 of the user 3 is thus not compressed by the deformation of the stirrup 32, which reduces the compression points, for example during a malaise.

The user 3 then closes the clamping means 37 of the stirrup 32 against its first foot 56, to secure its first foot 56 to the stirrup 32. The risk of a separation of the first foot 56 of the stirrup 32, which can lead to a limb in suspension is thus reduced.

The user 3 inserts a second foot 58 of a second leg 59 into a footrest 60.

According to the variant of the second embodiment shown in Figures 10 and 11, the footrest 60 comprises a stirrup 32 identical to the stirrup 32 of the device 31 of ascension.

The footrest 60 is secured to a second self-locking 61 disposed on the main cable 2.

The user 3 rested his weight and that of his equipment on his first foot 56. The weight of the user 3 and his equipment is then supported by the first self-locking 55, through the device 31 of ascent, the first self-locking 55 preventing a sliding of the first foot 56 along the main cable 2.

The ascension device 31 transmits the force exerted on the caliper 32, downwards, to the first self-locking 55 through, according to the second embodiment illustrated in FIGS. 7 and 8, of the element 45. and holding cable 52, according to the variant of the second embodiment illustrated in Figures 9 to 11.

The element 45 for holding, for the second embodiment, or the cable 52 for traction, for the variant of the second embodiment, is thus able to withstand a tensile force, respectively exerted between the first end 46 and the second end 48 or the first end 53 and the second end 54, so as to block the first self-locking 55 and prevent the sliding of the ascension device 31 along the main cable 2.

The user 3 then folds his second leg 59, sliding the second self-locking 61, upwards, along the main cable 2 and mount his second foot 58 and the footrest 60, secured to his second foot 58 along the main cable 2 as shown in FIG. The user 3 then rest his weight and that of his equipment on his second foot 58. The weight of the user 3 and his equipment is then supported by the second self-locking 61, through the footrest 60, the second self-locking 61 preventing a sliding of the second foot 58 along the main cable 2.

The user 3 then folds his first leg 57, sliding the first self-locking 55, upwards, along the main cable 2 and mount his first foot 56 and the device 31 of ascension, secured to his first foot 56, along the main cable 2, as shown in FIG.

The ascension device 31 transmits the force exerted on the stirrup 32, upwards, at the first self-locking 55, through the rod 47 of the holding element 45, integral with the first end 46 and of the second end 48. The rod 47 is thus able to withstand a compressive force exerted between the first end 46 and the second end 48, so as to slide the first self-locking 55 along the main cable 2. This rigidity, combined with the back support means 7 and the retaining means 8, gives the user 3 a position hold, enabling him to avoid being in a suspension situation, which is favorable for the appearance of a harness syndrome.

According to different modes of use, a third self-locking is arranged around the main cable 2 or around a belay cable, to prevent a fall of the user 3 if the first self-locking 55, the second self-locking 61 or the two self-locking 55, 61 no longer provide their function of blocking the main cable 2.

The holding element 45 thus allows a user to climb along a main cable 2 arranged substantially vertically, the user 3 being in a substantially vertical position, the feet 56, 58 directed towards the low.

The holding member 45 allows a user 3 to mount the first self-locking 55 along the main cable 2, using only its first foot 56 inserted into the stirrup 32.

The holding member 45 also allows a user 3 to ride along the main cable 2 to the sole force of his legs 57, 59 without using his upper limbs. The ascension system 1 has the following advantages in particular:

ease of implementation and use;

the hands of the user 3 are left free, allowing him for example to work and evolve along the main cable 2 safely;

adaptability to existing harnesses 4 and harnesses with or without harnesses, as well as to the raising and lowering devices;

- Passive protection of the user 3 against the risk of being in a tilted position, and thus reduce the risk of occurrence of the harness syndrome 4.

The ascension system 1 finds applications in the works of cordists, or mountaineers of the building, cordist-nacellists, and more generally persons performing work at height, for industry, building, public works, events such as construction, repair, restoration, cleaning, control or expertise, brushcutting or cutting trees, installation of security systems or scaffolding, the installation of advertising tarpaulins, or even the work of fumiture, the laying of nets.

The ascension system 1 also finds applications in sports activities, for example climbing, speleology, or in shooting activities during sports events, or shooting in difficult-to-access environments, for example. example in cliff.

Claims

1. System (1) for ascending along a cable (2) main, the system (1) for ascension comprising a means (7) of back support to be secured to the back of a user (3) ), the system (1) for ascension being characterized in that it further comprises a means (8) for retaining comprising a first portion (9) extreme and a second portion (10) extreme, the first part ( 9) being intended to be integral with the backing means (7), the second end portion (10) comprising a slot (22) for receiving the main cable (2), so that the second end portion (10) slidable along the main cable (2), the retaining means (8) comprising a bar (23), the first end portion (9) being a portion of the bar (23) intended to be secured to the means (7) back support, the second end portion (10) comprising a sliding device (24).

2. System (1) according to claim 1, characterized in that the means (7) for holding back is a plate (11) having a shape adapted to fit the back of the user (3).

3. System (1) according to any one of the preceding claims, characterized in that the means (7) for holding back further comprises means (19) for holding the head of the user (3).

4. System (1) according to any one of claims 1 to 3, characterized in that the bar (23) extends from the first portion (9) extreme in a substantially rectilinear direction, then has a curvature, the bar (23) extending above the head of the user (3) when the first portion (9) end is integral with the means (7) of back support, the means (7) of the back support being secured to the back of the user (3).

5. System (1) according to any one of claims 1 to 4, characterized in that the means (7) of back support comprises a hollow rod (26), the bar (23) being fitted within the hollow rod (26), the hollow rod (26) comprising at least one hole (28) cooperating with at least one ball (27) disposed on the bar (23).

6. System (1) according to any one of claims 1 to 5, characterized in that the light (22) comprises a contour forming a loop (21) closed openable.

7. System (1) according to any one of the preceding claims, characterized in that the means (7) of back support is secured to the back of the user (3), via straps (16) and / or by a fastening belt (18).

8. System (1) according to any one of the preceding claims, characterized in that the means (7) of back support comprises a connecting device (20) for connecting the means (7) of back support to a harness ( 4).

9. System (1) according to any one of the preceding claims, characterized in that it comprises a device (31) for ascending along a cable (2) main, this device further comprising a stirrup (32), a holding element (45) configured to be integral, at a first end (46), of the stirrup (32) and intended to be secured, at a second end (48), of a first self-locking (55) adapted to be arranged on the main cable (2), the holding element (45) comprising a rod (47) capable of withstanding a compressive force exerted between the first end (46) and the second end (48), so as to slide the first self-locking (55) along the main cable (2), the rod (47) of the holding member (45) comprises a plurality of independent segments (49).